D-C control element circuit
D.C. high voltage power source with precise load current measure
Dampened choke coil
DC power supply with load current regulation
DC series voltage regulator with gating means for output to rema
DC static switch circuit with power saving feature
DC Switching voltage regulator with extended input voltage capab
DC variable voltage device
DC Voltage control device
DC-DC converter in watch system
DC-to-DC converter
DC-to-DC converters employing staggered-phase power switches wit
DC-voltage supply means for an inverter
Delayed on quick off regulator circuit for appliance control
Delta V.sub.BE generator circuit
Device comprising a transformer for step-wise varying voltages
Device for addition of the power from two alternating signals in
Device for connecting tuned power transmission line to a.c. netw
Device for generating variable output voltage
Device for noncontact switching of loaded transformer tappings